CN102162772A - Device and the method for monitoring vehicle emissions - Google Patents
Device and the method for monitoring vehicle emissions Download PDFInfo
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- CN102162772A CN102162772A CN 201010604216 CN201010604216A CN102162772A CN 102162772 A CN102162772 A CN 102162772A CN 201010604216 CN201010604216 CN 201010604216 CN 201010604216 A CN201010604216 A CN 201010604216A CN 102162772 A CN102162772 A CN 102162772A
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Abstract
The invention discloses a device and a method for monitoring vehicle emissions. The method comprises the following steps of: obtaining a relational expression between oil consumption and carbon dioxide according to the carbon dioxide and the instant oil consumption which are read by an on-board emission measurement system (OBS); reading the instant oil consumption of a vehicle by using an on-board diagnostics (OBD), comparing a difference between the instant oil consumption of the OBS and the instant oil consumption of the OBD, and establishing an oil consumption relational expression between the instant oil consumption of the OBS and the instant oil consumption of the OBD; and correcting and converting the instant oil consumption of the OBD into an emission quantity of the carbon dioxide according to the relational expression between the oil consumption and the carbon dioxide.
Description
Technical field
The present invention is relevant a kind of apparatus and method of monitoring CO2 emissions, and (On-Board Diagnostics, OBD) the instantaneous oil consumption that is read calculates CO2 emissions particularly to utilize diagnostic system on the car.
Background technology
Because human combustion of fossil fuels, discharging great amount of carbon dioxide isothermal chamber gas causes global warming, makes the mankind pay attention to emission of carbon-dioxide more, therefore the system of having invented many detecting CO2 emissions.Wherein the discharging of detecting vehicle is with vehicle-mounted discharge measurement system (On-BoardEmission Measurement System, OBS) comparatively large, and vehicle-mounted discharge measurement system measurement carbon dioxide is to adopt the non-divergence expression infrared analyzer of hot type to measure, its principle is the volumetric concentration that measures gas with the gas absorption specific wavelength, is converted to discharge capacity again.But the cost height of this mode, so can't on every car, all install to measure the soiling value of vehicular discharge, but measure if the vehicle-mounted discharge measurement system is set in fixed point, not only spacious day time-consuming, and be difficult to obtain instant vehicle disposal of pollutants information, the installation and the operating performance of condition vehicle-mounted discharge measurement system are complicated, are difficult to be implemented on the real road.
No. 097110938, tw Taiwan patent, it is mentioned with diagnostic system on the car and obtains vehicle data, is back to far-end servomechanism diagnosis waste gas data by wireless network; But, be both and utilize on the car diagnostic system to obtain data, but only can be with instantaneous oil consumption rough estimate waste gas information because of diagnostic system on the car, the information accuracy of gained is not high, is difficult to as a reference.
No. 200710055470.8, Chinese patent, its composition of mentioning with manifold pressure sensor, collector temperature sensor, heat prover measures auto exhaust and oil consumption, though can measure auto exhaust and oil consumption, its computation process and system are complicated.
Tw Taiwan patent M366728 number, after it is mentioned and utilizes satellite navigation to learn a displacement, the carbon emission amount of utilizing its data computation to go out to produce behind the moving displacement, but because of satnav has its certain margin of error, so calculate that with the movement of objects distance these mode gained data of CO2 emissions remain to be discussed.
In view of this, The present invention be directed to above-mentioned problem, propose the vehicular discharge monitoring device and the method for the value added instrument of diagnostic system on a kind of easy car, monitor carbon dioxide, its operation is simple and easy with system, and effectively improves these disappearances in the prior art.
Summary of the invention
Fundamental purpose of the present invention is that a kind of vehicular discharge monitoring device and method are being provided, and it is the value added instrument of diagnostic system on a kind of easy car, and diagnostic system reads instantaneous oil consumption on car, calculates CO2 emissions.Can make practical operation comparatively simple and easy and easy for installation, and reduce measure the cost of carbon dioxide, and be applicable to any vehicle that diagnostic system on the car is arranged, can be fast and calculate CO2 emissions immediately.
Of the present invention time a purpose is that a kind of vehicular discharge monitoring device and method are being provided, it is by carbon dioxide that reads diagnostic system on vehicle-mounted discharge measurement system and the car and instantaneous oil consumption, count the dyadic relation formula, and this dyadic relation formula is stored in the vehicular discharge monitoring device.Can make in the computing CO2 emissions process, not need to read this carbon dioxide and instantaneous oil consumption by the vehicle-mounted discharge measurement system again.
In order to achieve the above object, the invention provides a kind of vehicular discharge monitoring device, its instantaneous oil consumption that is diagnostic system read on the car that can utilize on the vehicle calculates CO2 emissions, and this vehicular discharge monitoring device comprises:
Diagnostic system joint on one car connects diagnostic system on this car, to receive instantaneous oil consumption;
One storage element, it is to store oil consumption relational expression and oil consumption and carbon dioxide relational expression; And
One arithmetic element, it electrically connects diagnostic system joint and this storage element on this car, with reception driving data, and according to this oil consumption relational expression and this oil consumption and carbon dioxide relational expression, the CO2 emissions that instantaneous oil consumption produced of this vehicle of computing.
In order to achieve the above object, the present invention also provides a kind of vehicular discharge monitoring method, comprising:
Read the instantaneous oil consumption and the CO2 emissions of a vehicle-mounted discharge measurement system;
Utilize regretional analysis or mathematical statistics analysis to draw an oil consumption and carbon dioxide relational expression instantaneous oil consumption of read and carbon dioxide;
Read the instantaneous oil consumption of diagnostic system on the car;
With read instantaneous oil consumption of diagnostic system on this car, as benchmark, set up the oil consumption relational expression of the instantaneous oil consumption of diagnostic system and the instantaneous oil consumption of this vehicle-mounted discharge measurement system on this car with the instantaneous oil consumption of this vehicle-mounted discharge measurement system; And
According to this oil consumption and carbon dioxide relational expression and this oil consumption relational expression, the instantaneous oil consumption of diagnostic system on this car is converted to CO2 emissions.
Under illustrate in detail by specific embodiment, when the effect that is easier to understand purpose of the present invention, technology contents, characteristics and is reached.
Description of drawings
Fig. 1 is a device architecture synoptic diagram of the present invention;
Fig. 2 is the vehicular discharge monitoring device computing carbon dioxide process flow diagram that utilizes of the present invention;
Fig. 3 is a method flow diagram of obtaining relational expression of the present invention;
Fig. 4 is instantaneous oil consumption of the present invention and carbon dioxide graph of a relation;
Fig. 5 is instantaneous oil consumption difference of diagnostic system and an engine torque graph of a relation on vehicle-mounted discharge measurement system of the present invention and the car;
Fig. 6 is the instantaneous oil consumption graph of a relation under the different engine torque of the present invention.
Description of reference numerals: 10-vehicular discharge monitoring device; Diagnostic system joint on the 12-car; The 14-central processing unit; The 16-storage element; The 18-network element; The 20-vehicle; Diagnostic system on the 22-car.
Embodiment
The present invention is that a kind of the instantaneous oil consumption of diagnostic system calculates CO2 emissions on the car by reading, its method is that the instantaneous oil consumption and the CO2 emissions that utilize the vehicle-mounted discharge measurement system to be read are set up out an oil consumption and carbon dioxide relational expression, read the instantaneous oil consumption of diagnostic system and vehicle-mounted discharge measurement system on the car again, as benchmark, set up out the oil consumption relational expression of the instantaneous oil consumption of diagnostic system and the instantaneous oil consumption of vehicle-mounted discharge measurement system on the car with the instantaneous oil consumption of vehicle-mounted discharge measurement system.
At first consult Fig. 1, it is a device architecture synoptic diagram of the present invention, and this vehicular discharge monitoring device 10 includes diagnostic system joint 12, an arithmetic element 14, a storage element 16 and a network element 18 on the car; Wherein diagnostic system joint 12 connects diagnostic system 22 on the car of vehicles 20 on the car, in order to receive instantaneous oil consumption; Arithmetic element 14 can be a central processing unit, it electrically connects diagnostic system joint 12, storage element 16 and network element 18 on the car, and control the start of these a little elements, and, calculate the CO2 emissions of vehicle 20 according to oil consumption relational expression and oil consumption and carbon dioxide relational expression in the storage element 16; Network element 18 is to electrically connect with arithmetic element 14, transmits or accept wireless signal with arithmetic element 14 Control Network unit 18.
Fig. 2 then is the vehicular discharge monitoring device computing carbon dioxide process flow diagram that utilizes of the present invention.Please refer to Fig. 1 and cooperate Fig. 2, at first when step S 10, diagnostic system joint 12 is the specification of SAEJ1962 on its car, connect diagnostic system 22 on the car, storage in the storage element 16 is imported in the instantaneous oil consumption that diagnostic system on the car 22 reads, instantaneous oil consumption and the oil consumption relational expression of utilizing arithmetic element 14 to read in the storage element 16 when step S 12 go to carry out computing, calculate one and proofread and correct numerical value, and relevant oil consumption relational expression is shown in following equation (1):
Y
OBS_fuel(x
OBD_fuel)＝Z (1)；
Wherein, Y
OBS_fuelBe the oil consumption of vehicle-mounted discharge measurement system; x
OBD_fuelBe diagnostic system oil consumption on the car; Z is a constant (Z is that a mathematics letter formula can be 1 time, 2 times ... to N time).Shown in step S14, calculate one and proofread and correct after the numerical value, arithmetic element 14 is again according to oil consumption in the storage element 16 and carbon dioxide relational expression, and high-ranking officers' positive is changed, calculate emission amount of carbon dioxide, about oil consumption and carbon dioxide relational expression shown in following equation (2):
Wherein, Fuel
CB(t) be fuel consumption (g/s); R
CWFBe Carbon balance in the fuel oil; R
CWFHCAverage Carbon balance weight for hydrocarbon in the waste gas; HC
MASS(t) be instant hydrocarbon weight (g/s); CO
MASS(t) be instant carbon monoxide weight (g/s); CO
2MASS(t) be instant carbon dioxide weight (g/s); M
CBe carbon atom mole heavy (g); M
COBe carbon monoxide mole heavy (g);
Be carbon dioxide mole heavy (g).
It more than is the vehicular discharge monitoring device, its need utilize that diagnostic system can calculate CO2 emissions on the car, it is the method flow diagram of obtaining relational expression of the present invention that the adquisitiones of wherein oil consumption relational expression and oil consumption and carbon dioxide relational expression please refer to Fig. 3, at first, the sharp vehicle-mounted discharge measurement system of elder generation reads the instantaneous oil consumption and the CO2 emissions of vehicle when step S20, next entering step S 22 utilizes regretional analysis to draw carbon dioxide and instantaneous oil consumption graph of a relation, please cooperate with reference to Fig. 4, Fig. 4 is instantaneous oil consumption and carbon dioxide graph of a relation, and draw an oil consumption and carbon dioxide relational expression, shown in following equation (3):
y＝0.3177x-2E-05(3)；
Wherein, x is CO2 emissions (g/s); Y is instantaneous oil consumption (g/s).Enter step S 24, it is the instantaneous oil consumption of reading diagnostic system on vehicle-mounted discharge measurement system and the car, enter the relatively difference of both instantaneous oil consumption of step S26 again, and filter out under the same terms both instantaneous oil consumption, please refer to Fig. 5 and be instantaneous oil consumption difference of diagnostic system and engine torque graph of a relation on vehicle-mounted discharge measurement system and the car, learn that by Fig. 5 its instantaneous oil consumption key factor is an engine torque, utilize regretional analysis to draw the instantaneous oil consumption distribution plan of diagnostic system on vehicle-mounted discharge measurement system and the car again, Fig. 6 is the instantaneous oil consumption graph of a relation under the different engine torque (Engine Torque), different relational expressions are all arranged under different engine torque as shown in Figure 6, as when engine torque be 0% to 10% relevant oil consumption relational expression shown in following equation (4):
y＝-22.081x
3+19.914x
2-3.3432x+0.6113(4)；
When engine torque be 10% to 20% relevant oil consumption relational expression shown in following equation (5):
y＝1.2133x
3-4.8212x
2+7.6662x-2.6006(5)；
When engine torque be 20% to 30% relevant oil consumption relational expression shown in following equation (6):
y＝-2.6209x
3+18.622x
2-42.157x+32.39(6)；
When engine torque be 30% to 40% relevant oil consumption relational expression shown in following equation (7):
y＝0.3059x
3-2.7413x
2+8.7483x-7.5707(7)；
When engine torque be 40% to 50% relevant oil consumption relational expression shown in following equation (8):
y＝-0.6574x
3+9.2721x
2-41.689x+62.921(8)；
When engine torque be 50% to 60% relevant oil consumption relational expression shown in following equation (9):
y＝-5.2747x3+107.78x?2-731.1x+1651.4(9)；
When engine torque be 60% to 70% relevant oil consumption relational expression shown in following equation (10):
y＝1.1732x
3-27.683x
2+217.61x-563.56(10)；
When engine torque be 70% to 80% relevant oil consumption relational expression shown in following equation (11):
y＝-0.6158x
3+18.592x
2-186.07x+625.14(11)；
When engine torque be 80% to 90% relevant oil consumption relational expression shown in following equation (12):
y＝-102.09x
3+3646.2x
2-43399x+172169(12)；
More than, x is diagnostic system oil consumption oil consumption (g/s) on the car; Y is vehicle-mounted discharge measurement system oil consumption (g/s).At last, enter step S28, be to adopt the instantaneous oil consumption of diagnostic system on the car, and utilize the relational expression of design in the hardware, can draw CO2 emissions.
By aforesaid vehicular discharge monitoring device and method, can make practical operation comparatively simple and easy and easy for installation, and can reduce the cost of measuring carbon dioxide, and be applicable to any vehicle that diagnostic system on the car is arranged, can be fast and calculate CO2 emissions immediately.
More than explanation is just illustrative for the purpose of the present invention, and nonrestrictive, those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited, can make many modifications, change; or equivalence, but all will fall within the scope of protection of the present invention.
Claims (9)
1. a vehicular discharge monitoring device is characterized in that, its instantaneous oil consumption that is diagnostic system read on the car that can utilize on the vehicle calculates CO2 emissions, and this vehicular discharge monitoring device comprises:
Diagnostic system joint on one car connects diagnostic system on this car, to receive instantaneous oil consumption;
One storage element, it is to store oil consumption relational expression and oil consumption and carbon dioxide relational expression; And
One arithmetic element, it electrically connects diagnostic system joint and this storage element on this car, with reception driving data, and according to this oil consumption relational expression and this oil consumption and carbon dioxide relational expression, the CO2 emissions that instantaneous oil consumption produced of this vehicle of computing.
2. vehicular discharge monitoring device according to claim 1, it is characterized in that, during these these CO2 emissions of arithmetic element computing, it is the instantaneous oil consumption of reading diagnostic system on this car earlier, and carry out computing according to this oil consumption relational expression, to obtain the correction numerical value after the conversion, this arithmetic element should be proofreaied and correct the numerical value translation operation and go out this CO2 emissions again according to this oil consumption and carbon dioxide relational expression.
3. vehicular discharge monitoring device according to claim 2 is characterized in that, this oil consumption relational expression is as follows:
Y
OBS_fuel(x
OBD_fuel)＝Z
Wherein, Y
OBS_fuelBe the oil consumption of vehicle-mounted discharge measurement system; x
OBD_fuelBe diagnostic system oil consumption on this car; Z is a constant.
4. vehicular discharge monitoring device according to claim 2 is characterized in that, this oil consumption and carbon dioxide relational expression are as follows:
Wherein, Fuel
CB(t) be fuel consumption, the g/s of unit; R
CWFBe Carbon balance in the fuel oil; R
CWFHCAverage Carbon balance weight for hydrocarbon in the waste gas; HC
MASS(t) be instant hydrocarbon weight, the g/s of unit; CO
MASS(t) be instant carbon monoxide weight, the g/s of unit; CO
2MASS(t) be instant carbon dioxide weight, the g/s of unit; M
CFor the carbon atom mole is heavy, the g of unit; M
COFor the carbon monoxide mole is heavy, the g of unit;
For the carbon dioxide mole weighs
,Unit
g
5. vehicular discharge monitoring device according to claim 1 is characterized in that, more comprises a radio communication unit, and it electrically connects this arithmetic element, and transmits or accept wireless signal.
6. a vehicular discharge monitoring method is characterized in that, comprising:
Read the instantaneous oil consumption and the CO2 emissions of a vehicle-mounted discharge measurement system;
Utilize regretional analysis or mathematical statistics analysis to draw an oil consumption and carbon dioxide relational expression instantaneous oil consumption of read and carbon dioxide;
Read the instantaneous oil consumption of diagnostic system on the car;
With read instantaneous oil consumption of diagnostic system on this car, as benchmark, set up the oil consumption relational expression of the instantaneous oil consumption of diagnostic system and the instantaneous oil consumption of this vehicle-mounted discharge measurement system on this car with the instantaneous oil consumption of this vehicle-mounted discharge measurement system; And
According to this oil consumption and carbon dioxide relational expression and this oil consumption relational expression, the instantaneous oil consumption of diagnostic system on this car is converted to CO2 emissions.
7. vehicular discharge monitoring method according to claim 6, it is characterized in that, obtaining this oil consumption relational expression is to utilize diagnostic system and the instantaneous fuel consumption data database data of this vehicle-mounted discharge measurement system on this car, both instantaneous oil consumption under screening the same terms, to obtain the statistical value of both instantaneous oil consumption, utilize this statistical value to draw diagnostic system and the instantaneous fuel consumption values distribution plan of this vehicle-mounted discharge measurement system on this car, draw this oil consumption relational expression with regretional analysis or mathematical statistics analysis.
8. vehicular discharge monitoring method according to claim 6 is characterized in that, this oil consumption and carbon dioxide relational expression are as follows:
Wherein, Fuel
CB(t) be fuel consumption, the g/s of unit; R
CWFBe Carbon balance in the fuel oil; R
CWFHCAverage Carbon balance weight for hydrocarbon in the waste gas; HC
MASS(t) be instant hydrocarbon weight, the g/s of unit; CO
MASS(t) be instant carbon monoxide weight, the g/s of unit; CO
2MASS(t) be instant carbon dioxide weight, the g/s of unit; M
CFor the carbon atom mole is heavy, the g of unit; M
COFor the carbon monoxide mole is heavy, the g of unit;
For the carbon dioxide mole is heavy, unit
g
9. vehicular discharge monitoring method according to claim 6 is characterized in that, this oil consumption relational expression is as follows:
Y
OBS_fuel(x
OBD_fuel)＝Z
Wherein, Y
OBS_fuelBe this vehicle-mounted discharge measurement system oil consumption; x
OBD_fuelBe diagnostic system oil consumption on this car; Z is a constant.
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| CN103347060A (en) * | 2013-06-17 | 2013-10-09 | 张燕 | System and method for collecting long-distance carbon emission data based on vehicle-mounted diagnostic system |
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| CN110823585A (en) * | 2019-11-06 | 2020-02-21 | 清华大学 | NO in heavy vehicle tail gas based on OBD remote emission monitoring dataXEmission factor acquisition method |
| CN112201014A (en) * | 2020-09-27 | 2021-01-08 | 同济大学 | Early warning method and early warning system for excessive carbon deposition of biodiesel engine |
| CN113722652A (en) * | 2021-07-30 | 2021-11-30 | 南京信息职业技术学院 | Method for calculating carbon emission of fuel vehicle traffic |
| CN113722652B (en) * | 2021-07-30 | 2023-06-13 | 南京信息职业技术学院 | Fuel vehicle traffic carbon emission calculation method |
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| CN115564149B (en) * | 2022-12-05 | 2023-04-07 | 中汽研汽车检验中心(昆明)有限公司 | Method and system for predicting carbon dioxide emission of regional motor vehicles on actual road |
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